The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2014
Filed:
May. 15, 2012
Applicants:
Junyong Zhu, Madison, WI (US);
Richard S. Reiner, Madison, WI (US);
Inventors:
JunYong Zhu, Madison, WI (US);
Richard S. Reiner, Madison, WI (US);
Assignee:
The United States of America as Represented by the Secretary of Agriculture, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B 15/00 (2006.01); C08B 5/14 (2006.01); C08B 5/00 (2006.01);
U.S. Cl.
CPC ...
C08B 15/00 (2013.01); C08B 5/14 (2013.01); C08B 5/00 (2013.01);
Abstract
Methods for integrating the production of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) from cellulose are provided. The methods use milder acid hydrolysis conditions than those for maximal CNC production to achieve reduced degradation of cellulose into soluble sugars. Also provided are negatively charged cellulosic solid residues (CSRs) in the form of cellulose fibers (CF) and/or cellulose microfibrils (CMF) during the acid hydrolysis, as well as CNFs fabricated from the CSRs.